MP_DEVICE = 'XRT_MULTI_PROCESSING_DEVICE'
LOCAL_WORKER = 'XRT_LOCAL_WORKER'
TPU_CONFIG = 'XRT_TPU_CONFIG'
SERVICE_ADDRESS = 'XRT_MESH_SERVICE_ADDRESS'
DEVICE_MAP = 'XRT_DEVICE_MAP'
WORKERS = 'XRT_WORKERS'
LOCAL_ORDINAL = 'XRT_SHARD_LOCAL_ORDINAL'
ORDINAL = 'XRT_SHARD_ORDINAL'
WORLD_SIZE = 'XRT_SHARD_WORLD_SIZE'
TPU_NUM_DEVICES = 'TPU_NUM_DEVICES'
GPU_NUM_DEVICES = 'GPU_NUM_DEVICES'
